Why is it not profitable? The projects in the top 20 coinmarketcap are always growing and profitable for investors, but it takes quite a long time for it to grow. And investors need to be patient enough to benefit from them
It does not always takes long time for all the coins. For example just consider ETH. It has grown enough in the past 3-4 month. From 200 USD to 450+. What else one can expected from any kind of investment.